The Scottish Aortic Stenosis LongiTudinal Imaging and biomarkeR (SALTIRE) Programme
The goal of this observational study is to understand the processes of what causes and accelerates the disease progress in aortic stenosis and following aortic valve replacement. Participants will undergo transthoracic echocardiography every 6 months, with annual visits for state-of-the-art scanning techniques including positron-emission tomography combined with computed tomography or magnetic resonance imaging with radiotracers designed to look at disease processes including fibrosis, calcification, inflammation and thrombosis activity.
• Male or female aged \>50 years
• Provision of informed consent prior to any study specific procedures
• Patients with bioprosthetic aortic valve replacements, including both surgically and transcatheter implanted valves
• Patients with severe aortic stenosis (peak velocity \>4.0 m/s; previously recruited patients)
• Patients with moderate aortic stenosis (peak velocity 3.0-4.0 m/s; new prospectively recruited patients)
• Patients with mild aortic stenosis (peak velocity 2.5-2.9 m/s; new prospectively recruited patients)
• Patients with aortic sclerosis (tri-leaflet thickened aortic valve with no obstruction of ventricular outflow)
• Age and sex-matched healthy volunteers